Finding the Third Proportional to 548,090 and 1,195,780

Step by Step Solution

1. Step 1: Write the proportion equation
   548,090 : 1,195,780 = 1,195,780 : x
2. Step 2: Convert to fraction form
   548,090/1,195,780 = 1,195,780/x
3. Step 3: Cross multiply
   548,090x = 1,195,780 × 1,195,780
4. Step 4: Simplify right side
   548,090x = 1,429,889,808,400
5. Step 5: Solve for x
   x = 1,429,889,808,400/548,090
6. Step 6: Final answer
   x = 2,608,859.51